2004-2008 Yamaha Raptor 50 YFM50 Service Manual

Diagnostic procedures and component service for Yamaha Raptor 50 YFM50: engine, carburetor, drive train, chassis, electrical system. P/N: 5YF-21710-00-00

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Document Details

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Document Number / Seller:
24764 / William Cooper
File Size:
7.04 MB
File Type:
PDF
Language:
English
Pages:
235
Printable:
Yes
Category:
ATV
Last updated / verified
Oct 20, 2025

Models Covered & Key Technical Specifications

Yamaha Raptor 50 YFM50 2004-2008 Service Manual Data-Compendium Yamaha YFM50 Raptor 50 (5YF1) -- 2004–2008 Integrated Original Library | YFM50 Series Record.

  • Published Reservoir Specs: 49 cm³ (2.99 cu in) is specified as the engine displacement volume Bounds.
  • Specific Displacement Data: For optimal operation, 10.0:1 establishes the compression ratio Framework.
  • Integral Dimensional Tolerance: 1,200 kPa (12.0 kg/cm², 170.6 psi) — achieves the standard compression pressure Matrix.
  • Operational Climate Parameters: The engine requires 1,750–1,850 r/min for baseline idle speed setting Standards.
  • Established Physical Specs: Tank volume reaches 6.8 L (1.50 Imp gal, 1.80 US gal) Margin.
  • Authorized Fluid Capacity: The clutch boss nut is rated at 60 Nm (6.0 m·kg, 43 ft·lb) Protocol.

Professional Workshop Service Manual & Technical Specifications

Yamaha Raptor 50 YFM50 2004-2008 Service Manual

Engine-Type: Air-cooled 4-stroke, SOHC // Technical-Domain: Engine, Chassis, Electrical, Drive Train Logic // Performance-Values: All specifications are listed in SI and METRIC UNITS.

Assessment-Element Parameters Calibration-Data
Model code 5YF1 ----
Engine type Air-cooled 4-stroke, SOHC ----
Displacement 49 cm³ ----
Compression ratio 10.0 : 1 ----
Engine oil capacity 0.80 L (0.70 Imp qt, 0.85 US qt) ----
Final gear oil capacity 0.12 L (0.11 Imp qt, 0.13 US qt) ----

Featuring a modular arrangement of comprehensive chapters covering all systems. The manual details engine specifications, including bore and stroke, and provides precise torque values for critical fasteners.

Engine

This section systematically requiring detailed procedures for engine disassembly and reassembly. It includes information on valve clearance adjustment and timing chain tensioner settings.

Drive Train

This section provides guidance on checking and adjusting the drive train components, ensuring proper function and longevity.

Chassis

Covers the inspection and maintenance of the chassis, including wheels, tires, and suspension systems for optimal performance.

Electrical System

Details the electrical components, ignition system, starting system, charging system, and troubleshooting guides for the electrical systems.

It documents torque specifications for various engine components to ensure service interval reliability.

FAQ

What values are specified for **calibrated** system architecture? keyboard_arrow_down

49 cm³ is the specified engine displacement volume, with a standard compression pressure of 1,200 kPa (12.0 kg/cm², 170.6 psi) at 1,000 r/min.

Assess the **applicable** tool requirements for valve clearance adjustment. keyboard_arrow_down

A tappet adjusting tool (3 mm) P/N. YM-08035, 90890-01311 is necessary for adjusting the valve clearance.

What **exact** electrical values are listed for the charging system? keyboard_arrow_down

The nominal output for the charging system is 14 V 45 W at 5,000 r/min, with a charging coil resistance of 0.72 ~ 1.08 Ω for the white-black wire.

Confirm the **specific** calibration settings for the rear brake lever free play. keyboard_arrow_down

7 ~ 10 mm (0.28 ~ 0.39 in) is the specified rear brake lever free play, measured at the drum side adjuster.

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Reviews (3)

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This manual covers everything you need! The illustrations make it easy to follow. Highly recommend!
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The download was smooth and the support team was quick to respond when I had questions. Very helpful!
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Rated 4 out of 5 stars